成员的完整列表，这些成员属于 nertc.RtcVideoLayerSendStats,包括所有继承而来的类成员

captureFrameRate	nertc.RtcVideoLayerSendStats
captureHeight	nertc.RtcVideoLayerSendStats
captureWidth	nertc.RtcVideoLayerSendStats
codecName	nertc.RtcVideoLayerSendStats
encoderBitrate	nertc.RtcVideoLayerSendStats
encoderFrameRate	nertc.RtcVideoLayerSendStats
height	nertc.RtcVideoLayerSendStats
layerType	nertc.RtcVideoLayerSendStats
renderFrameRate	nertc.RtcVideoLayerSendStats
sentBitrate	nertc.RtcVideoLayerSendStats
sentFrameRate	nertc.RtcVideoLayerSendStats
targetBitrate	nertc.RtcVideoLayerSendStats
width	nertc.RtcVideoLayerSendStats